I do have an already existing XText grammr to which corresponds an ECORE meta-model and I am developing a Graphiti editor for it. Now I'd like to drag and drop elements from a model, instance of this meta-model, to the Graphiti editor. The problem is that I'd like the XText outline to be active at the same time of the Graphiti editor. What instead happens is that the when I select the Graphiti editor I get an empty outline.